This topic contains a solution. Click here to go to the answer

Author Question: What is the primary purpose of vitamin D in humans? a. to develop acute eyesight b. to maintain ... (Read 82 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
What is the primary purpose of vitamin D in humans?
 
  a. to develop acute eyesight
 b. to maintain the balance of calcium in the body
 c. to prevent the development of respiratory illnesses
  d. to enhance the production of collagen for hair

Question 2

The Aymara Indians, who live in the mountains of Bolivia, have become biologically adapted to their environment by being:
 
  a. short legged and barrel chested and surviving on lower oxygen content.
  b. long legged and extremely thin in comparison to the rest of the nation.
  c. short legged and very narrow chested and surviving on higher oxygen content.
  d. excellent climbers with an extraordinary sense of balance.
  e. long legged and stocky chested because of enlarged heart and lungs.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

sultansheikh

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

b

Answer to Question 2

a





 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Did you know?

Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

For a complete list of videos, visit our video library